Yamato Sueoka defeated Daisuke Sumizawa 0-6 6-3 10-3 in the M25 Takasaki 1 qualifying round of 16 on hard. The upset overturned the form book — Daisuke Sumizawa came in leading the head-to-head 1–0, but Yamato Sueoka had been the form player, winning 5 of their last 10 on hard. Yamato Sueoka claimed a first win over Daisuke Sumizawa in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-09-07 | M25 Sapporo 2 | Q32 | hard | Daisuke Sumizawa | 2-6 6-4 10-8 |
Averages over each player's completed matches in the selected window (19 vs 71). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About